Respuesta :
An acid-base indicator (e.g., phenolphthalein) changes color depending on the pH. Redox indicators are also frequently used. A drop of indicator solution is added to the titration at the start; when the color changes the endpoint has been reached, this is an approximation of the equivalence point.
Answer:
End point.
Explanation:
The end point is the point at which the indicator changes color in a titration.
The end point generally lags behind the neutralization point in a reaction where we have taken acidic or basic indicator.
Indicators show a change or appearance in color at particular pH. This pH is achieved after point of neutralization. However for some indicators the change in color can also be observed at point of neutralization or completion of reaction exactly. In that case equivalence point and end point will coincide.
